Abstract
In the screen house, tomato seedlings, cv. DT 69/257/grown in steam-sterilized soil were inoculated with graded inocula of 5,000, 10,000, 15,000, 20,000 and 25,000 eggs of root-knot nematode, Meloidogyne incognita. At inocula levels of 15,000, 20,000 and 25,000 eggs of M. incognita, number of leaves per plant, plant height, fruit yield and root-galls were significantly reduced. In the field planted with tomato seedlings, aqueous extracts from the roots of marigold, Tagetes erecta nitta (Hyptis suaveolens) and basil (Ocimum gratissimum) plants were applied to root-knot nematode infected soil at four concentrations viz. 25,000; 500,000; 750,000 and 1,000,000 parts per million (ppm.) per tomato plant. All the aqueous plant root extracts reduced the root-knot nematode populations in the soil with corresponding increases in plant height, plant leaf and fruit yield over the untreated control treatment.
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Claims 4
Claim · model-written summary
Inoculum levels of 15,000 to 25,000 eggs of M. incognita significantly reduced leaf number, plant height and fruit yield of tomato.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- inocula levels of 15,000, 20,000 and 25,000 eggs of M. incognitae1
- Interactor
- M. incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitae1pest - Outcome
- number of leaves per plant, plant height, fruit yielde1
- Direction
- significantly reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“tomato seedlings, cv. DT 69/257/grown in steam-sterilized soil were inoculated with graded inocula of 5,000, 10,000, 15,000, 20,000 and 25,000 eggs of root-knot nematode, Meloidogyne incognita”
e1“At inocula levels of 15,000, 20,000 and 25,000 eggs of M. incognita, number of leaves per plant, plant height, fruit yield and root-galls were significantly reduced”
Claim · model-written summary
Inoculum levels of 15,000 to 25,000 eggs of M. incognita significantly reduced root-galls on tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- inocula levels of 15,000, 20,000 and 25,000 eggs of M. incognitae1
- Interactor
- M. incognitaMeloidogyne incognitae1pest
- Outcome
- root-gallse1
- Direction
- significantly reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato seedlings, cv. DT 69/257/grown in steam-sterilized soil were inoculated with graded inocula of 5,000, 10,000, 15,000, 20,000 and 25,000 eggs of root-knot nematode, Meloidogyne incognita”
e1“At inocula levels of 15,000, 20,000 and 25,000 eggs of M. incognita, number of leaves per plant, plant height, fruit yield and root-galls were significantly reduced”
Claim · model-written summary
Aqueous plant root extracts reduced root-knot nematode populations in the soil compared with the untreated control in tomato in the field.
- Taxon
- tomatoSolanum lycopersicume2
- Treatment
- aqueous plant root extractse3
- Interactor
- root-knot nematodeMeloidogynee3pest
- Outcome
- root-knot nematode populations in the soile3
- Direction
- reducede3
- Comparator
- untreated control treatmente3
- Setting
- fielde2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“In the field planted with tomato seedlings”
e3“All the aqueous plant root extracts reduced the root-knot nematode populations in the soil with corresponding increases in plant height, plant leaf and fruit yield over the untreated control treatment”
Claim · model-written summary
Aqueous plant root extracts increased plant height, plant leaf and fruit yield of tomato over the untreated control in the field.
- Taxon
- tomatoSolanum lycopersicume2
- Treatment
- aqueous plant root extractse3
- Interactor
- root-knot nematodeMeloidogynee3pest
- Outcome
- plant height, plant leaf and fruit yielde3
- Direction
- increasese3
- Comparator
- untreated control treatmente3
- Setting
- fielde2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“In the field planted with tomato seedlings”
e3“All the aqueous plant root extracts reduced the root-knot nematode populations in the soil with corresponding increases in plant height, plant leaf and fruit yield over the untreated control treatment”
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